It Cosmetics Tightline Full Lash Length Black Primer 3.5mlDirection: Starting at the root of your lashes, hold the Tightline Full Lash Length Black Primer Skinny Wand horizontally then wiggle and sweep through to the tips. For a more visible eyeliner effect, gently press the Tightline wand along the base of your lash line, filling in the gaps between your lashes. Move along the lash line for an eyeliner effect.